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【单选题】
设有关系模式:student(sno,sname,age,dept),现利用命令: CREATE VIEW stu AS SELECT * FROM student WHERE dept='cs'WITH CHECK OPTION创建了一个视图。则以下SQL命令中能正确执行的是( )。
A.
UPDATE stu SET dept='maths'
B.
UPDATE stu SET dept='maths'WHERE age>=20
C.
INSERT INTO stu VALUES('2004001','John',30,'CS')
D.
INSERT INTO stu VALUES('200400l','John',50,'maths')
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【多选题】蹲姿礼仪要求有( )
A.
弯腰捡拾物品时可以臀部向后撅起
B.
蹲礼分交叉式和高低式两种
C.
女士无论采用哪种蹲姿,都要将腿靠紧臀部向下
D.
蹲姿最好采取两膝一高一低的姿式
E.
在孩子面前蹲下与他交谈,会使孩子感到亲切
【单选题】A: Why, its eight oclock already. B: Im surprised at_____being so late.
A.
it
B.
its
C.
it is
D.
it's
【简答题】Why is science so important? How does science affect your daily life?
【单选题】—______ do you like science? —______ it's interesting. [     ]
A.
Why, So
B.
What, Because
C.
Why, Because
D.
When, Because
【单选题】'Finagle' is not a word that most people associate with science. One reason why science is so respected these days is that the image of the scientist is of one who dispassionately collects data in an ...
A.
It is an important factor that must be included in scientific research.
B.
It is a tendency to use collected data to produce desired results.
C.
It is a tendency to interpret the data in one's favour.
D.
It is a factor which, if handled appropriately, will help Settle controversy,
【单选题】'_______ do you like science?' '_______ it's interesting.' [     ]
A.
Why, Because
B.
What, So
C.
When, But
D.
How, Because
【单选题】慢性肺心病引起右心衰竭的最主要原因是
A.
肺动脉高压
B.
心肌收缩力降低
C.
心室充盈受限
D.
心律失常
E.
酸碱平衡失调
【多选题】男性,70岁,以"反复咳嗽、咳痰20年,气短、下肢水肿10年,加重2周,神志不清1天"为主诉入院。每年冬季发作,咳白色黏痰,近2周上述症状加重,咳黄痰,出现明显呼吸困难,不能平卧。1天前因头痛、烦躁、夜间不能睡觉,家属给予地西泮2片,服后即入睡不醒。既往史:吸烟30年,20支/日。该患者动脉血气分析示:pH7.33,PaO46mmHg,PaCO71mmHg,AB38mmol/L,则该患者的诊断为(...
A.
阻塞性肺气肿
B.
支气管哮喘
C.
支气管扩张
D.
慢性支气管炎
E.
慢性肺源性心脏病急性加重期
F.
肺结核
G.
Ⅱ型呼吸衰竭,肺性脑病
H.
呼吸性酸中毒
I.
支气管肺癌
J.
呼吸性酸中毒合并代谢性酸中毒
【多选题】男性,70岁,以"反复咳嗽、咳痰20年,气短、下肢水肿10年,加重2周,神志不清1天"为主诉入院。每年冬季发作,咳白色黏痰,近2周上述症状加重,咳黄痰,出现明显呼吸困难,不能平卧。1天前因头痛、烦躁、夜间不能睡觉,家属给予地西泮2片,服后即入睡不醒。既往史:吸烟30年,20支/日。该患者动脉血气分析示:pH7.33,PaO 2 46mmHg,PaCO 2 71mmHg,AB38mmol/L,则该患...
A.
阻塞性肺气肿
B.
支气管哮喘
C.
支气管扩张
D.
慢性支气管炎
E.
慢性肺源性心脏病急性加重期
F.
肺结核
G.
Ⅱ型呼吸衰竭,肺性脑病
H.
呼吸性酸中毒
I.
支气管肺癌
J.
呼吸性酸中毒合并代谢性酸中毒
【单选题】Why is Kuwait so rich?
A.
Because there are many immigrants who have brought science and technology.
B.
Because it is rich in oil.
C.
Because it has fewer people than any other country in the world.
D.
Because its education is highly developed.
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